subsist

verb
UK /səbˈsɪst/
US /səbˈsɪst/

To stay alive with just a little food or money.

The family had to subsist on rice and beans during the hard winter.


OTHER MEANINGS

2. To continue to exist or remain in place.

A few old customs still subsist in the remote village.

3. To keep oneself alive by a particular means.

Many farmers subsist by growing their own crops.

4. To be supported or maintained by something.

The tiny community subsists on fishing and tourism.